May 12, 2015· This month we take a hard look at the differences between ERW, DOM and Seamless Tube. ERW (Electric Resistance Welded) The nomenclature ERW refers to a specific type of welding process that involves both spot and seam welding. Seam welding is commonly used during the manufacturing of round, square and rectangular steel tubing. The steel strip ...

JF Engineering Products LLP specializes in Hollow Sections for the different industrial requirement. These Hollow Sections are available in various shapes, sizes, and thickness and are ranging from square, rectangular and circular cross-sections, elliptical and oval shape.